Abstract
A description of mesoscopic fluctuations of the pairing gap in finite-sized quantum systems based on periodic orbit theory is presented. The size of the fluctuations are found to depend on quite general properties. We distinguish between systems where corresponding classical motion is regular or chaotic, and describe in detail fluctuations of the BCS gap as a function of the size of the system. The theory is applied to different mesoscopic systems: atomic nuclei, metallic grains, and ultracold fermionic gases. We also present a detailed description of pairing gap variation with particle number for nuclei based on a deformed cavity potential.
Original language | English |
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Title of host publication | AIP CONFERENCE PROCEEDINGS |
Editors | Danielewicz P, Piecuch P, Zelevinsky V |
Publisher | American Institute of Physics (AIP) |
Pages | 173-184 |
Number of pages | 12 |
Volume | 995 |
DOIs | |
Publication status | Published - 2008 |
Event | 2nd Workshop on Nuclei and Mesoscopic Physics, 2007 - ichigan State Univ, NSCL, E Lansing, MI, Lansing, Mi, United States Duration: 2007 Oct 20 → 2007 Oct 22 Conference number: 2 |
Publication series
Name | |
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Volume | 995 |
ISSN (Print) | 0094-243X |
ISSN (Electronic) | 1551-7616 |
Workshop
Workshop | 2nd Workshop on Nuclei and Mesoscopic Physics, 2007 |
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Country/Territory | United States |
City | Lansing, Mi |
Period | 2007/10/20 → 2007/10/22 |
Bibliographical note
The information about affiliations in this record was updated in December 2015.The record was previously connected to the following departments: Mathematical Physics (Faculty of Technology) (011040002)
Subject classification (UKÄ)
- Physical Sciences
Free keywords
- fluctuations
- pairing gap
- order/chaos
- semiclassical methods
- BCS theory